Description: MDS may lose file striping (and hence file data) in some cases

  Details    : If there are additional extended attributes stored on the MDS,
             in particular ACLs, SELinux, or user attributes (if user_xattr
             is specified for the client mount options) then there is a risk
             of attribute loss.  Additionally, the Lustre file striping
             needs to be larger than default (e.g. striped over all OSTs),
             and an additional attribute must be stored initially in the
             inode and then increase in size enough to be moved to the
             external attribute block (e.g. ACL growing in size) for file
             data to be lost.
i=adilger
i=kalpak.shah (test by adilger)
b=15777